Osmoreceptors change their firing rate in response to
a. the angiotensin concentration in blood.
b. the concentration of renin within the blood.
c. movement of water out of the osmoreceptor as the interstitial fluid becomes hypertonic.
d. reduced osmotic pressure within the blood plasma.
e. increased blood plasma volume.
Answer: c. movement of water out of the osmoreceptor as the interstitial fluid becomes hypertonic.
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